13 citations · 66 across the 16 of their papers we have counts for
18 papers
Evolution of Jeans instability in nonthermal magnetized complex plasmas
Dipankar Ray, Pralay Kumar Karmakar, Bharati Kakad +1
The classical Jeans instability framework provides a conceptual foundation for understanding self-gravitational collapse and subsequent star formation in interstellar environments.…
Joule-Thomson Effect and Geodesic Structure of Charged AdS Black Holes in f(R,T) Coupled with Nonlinear Electrodynamics
Shyamalee Bora, Dhruba Jyoti Gogoi, Pralay Kumar Karmakar
We herein study both the Joule-Thomson (JT) expansion process and the geodesic properties of a charged anti-de Sitter (AdS) black hole arising in modified gravity with nonlinear el…
Stability and wave dynamics in polytropic Eddington-inspired Born-Infeld gravitating solar plasmas
Souvik Das, Pralay Kumar Karmakar
We investigate the influence of nonlinear gravity corrections, arising from the Eddington-inspired Born-Infeld (EiBI) theory on wave dynamics, stability, and energy transport proce…
Impact of Thermodynamic Corrections on the Stability of Hayward-Anti de Sitter Black Hole Surrounded by a Fluid of Strings
Shyamalee Bora, Dhruba Jyoti Gogoi, Pralay Kumar Karmakar
We explore the modified thermodynamics of a Hayward-Anti de Sitter (H-AdS) black hole in atypical conditions, incorporating a string fluid, Hayward regularisation, and quantum entr…
Plasma sheath physics: A circuital description, amelioration, and application
Pralay Kumar Karmakar, Subham Dutta, Utpal Deka
A synoptic review of the electrical circuital model-based analysis of laboratory plasma sheaths, alongside their stability features in a realistic broader horizon, is systematicall…
An electric circuital analysis of laboratory plasma sheath fluctuations and propagations
Subham Dutta, Pralay Kumar Karmakar
The effective inductive (L), capacitive (C), and resistive (R) behavior of a plasma sheath in a conjoint coupled form is well familiar among plasma physics communities. A dynamic s…
Plasma fireball sheath dynamics: A brief review and meta-analysis
Subham Dutta, Ahmed Atteya, Pralay Kumar Karmakar
We present a comprehensive overview of the formation mechanism of plasma fireball sheath (PFS) structures, sheath-induced collective phenomena, associated relevant instabilities, a…
Effect of kappa-modified polarization force on Jeans instability in nonthermal EiBI-gravitating dust clouds
Dipankar Ray, Pralay Kumar Karmakar, Siddhartha Saikia
A semi-analytic model is developed to study the effects of kappa-distributed lighter constituents and the associated kappa-modified polarization force on the classical Jeans instab…
Solar GES-structure modified with EiBI gravity
Souvik Das, Pralay Kumar Karmakar
In the post-Newtonian era, the Eddington-inspired Born-Infeld (EiBI) theory, considered as an improved modification of the Einsteinian general relativity formalism in the weak fiel…
Analytic model for sheath-plasma resonance in inverted fireballs
Subham Dutta, Johannes Gruenwald, Pralay Kumar Karmakar
The sheath plasma resonance (SPR) in an inverted fireball (IFB) system is semi-analytically investigated using a generalized hydrodynamic isothermal model formalism. It incorporate…
Pulsational mode stability in complex EiBI-gravitating polarized astroclouds with (r, q)-distributed electrons
Dipankar Ray, Pralay Kumar Karmakar
The pulsational mode of gravitational collapse (PMGC) originating from the combined gravito-electrostatic interaction in complex dust molecular clouds (DMCs) is a canonical mechani…
A theoretic analysis of magnetoactive GES-based turbulent solar plasma instability
Souvik Das, Ahmed Atteya, Pralay Kumar Karmakar
A recently reported gravito-electrostatic sheath (GES) model is procedurally applied to study the turbumagnetoactive helioseismic oscillation features on the entire bi-fluidic sola…
Acoustic waves in the Jovian dusty magnetosphere: A brief review and meta-analysis
Souvik Das, Ahmed Atteya, Pralay Kumar Karmakar
The omnipresence of dust particulates in space and astrophysical plasmas has been attracting numerous researchers to study the collective excitation and propagation dynamics of dif…
Non-planar magnetoactive GES-based solar plasma stability
Souvik Das, Pralay Kumar Karmakar
A laboratory plasma-wall interaction-based astrophysical gravito-electrostatic sheath (GES) model is methodologically applied to study the dynamic stability of the magnetoactive bi…
Fireball sheath instability
Subham Dutta, Pralay Kumar Karmakar
The evolutionary existence of plasma fireballs is a generic phenomenon realizable in diversified physical plasma-dominated circumstances starting from the laboratory to the astroco…
Evidence of oblique electron acoustic solitary waves triggered by magnetic reconnection in Earth's magnetosphere
A. Atteya, S. K. EL-Labany, P. K. Karmakar +1
Motivated by the recent Magnetospheric Multiscale (MMS) observations of oblique electron acoustic waves, we addressed the generation mechanism of the observed waves by utilizing th…
Stability of nucleus-acoustic waves in completely degenerate white dwarf cores and their nearly degenerate ambience
Sayanti Dasgupta, Ahmed Atteya, Pralay Kumar Karmakar
We analyze the propagatory nucleus-acoustic wave (NAW) modes excitable in the completely degenerate (CD) core and in its nearly degenerate (ND) ambience of the ONe and CO white dwa…
A theoretical model for electromagnetic characterization of a spherical dust molecular cloud equilibrium structure
B. Borah, P. K. Karmakar
A theoretical model is developed to study the equilibrium electromagnetic properties of a spherically symmetric dust molecular cloud (DMC) structure on the Jeans scale. It applies…